abbr. 联合国经济及社会理事会（Economic and Social Council）
义词
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chalk talk, chalkboard, chalked, chalkiness, chalking, chalklike, chalkogenide, chalkography, chalkostibite, chalkrail,
相似单词
ecoregion, ecorthatic, ecorticate, ecosection, ecosite, ECOSOC, ecospecies, ecospecific, ecospecifically, ecosphere,